body{
    padding-top: 3.5rem;
    padding-bottom: 4.5rem;
}
.top{
    width: 100%;
    height: 3.5rem;
    line-height: 3.5rem;
    text-align: center;
    background-color: #ffffff;
    position: fixed;
    top: 0;
    left: 0;
}
.top h3{
    font-size: 1.4rem;
    color: rgb(25,25,25);
    font-weight: 500;
}

.channel-btn{
    
}
.channel-btn ul{
    width: 100%;
    display: flex;
    background-color: rgb(255,255,255);
}
.channel-btn ul li{
   flex: 1;
   text-align: center;
}
.channel-btn ul li img{
    width: 3.1rem;
    display: inline-block;
}
.channel-btn ul li p{
    
    line-height: 2.2rem;
    font-size: 0.9rem;
}

.channel-box{
    background-color: #ffffff;
}
.channel-box .channel-title{
    padding-top: 2rem;
    text-align: center;
}
.channel-box .channel-title h2{
    font-size: 1.6rem;
    font-weight: 500;
    color: rgb(51,51,51);
}
.channel-box .channel-detail{
    width: 100%;
}
.channel-box .channel-detail .channel-warper{
    width: 100%;
    padding: 0.9rem 0px;
    overflow: hidden;
}
.channel-box .channel-detail .channel-warper ul{
    width: 200%;
    display: flex;
}
.channel-box .channel-detail .channel-warper ul li{
    width: 8rem;
    margin-left: 0.45rem;
}
.channel-box .channel-detail .channel-list{
    padding:0px 0.45rem;
    
}
.channel-box .channel-detail .channel-list>ul{
  
}
.channel-box .channel-detail .channel-list>ul li{
    margin-bottom: 1.9rem;
}
.channel-box .channel-detail .channel-list>ul li img{
    height:13rem;
    border-radius: 14px;
    overflow: hidden;
}
.channel-box .channel-detail .channel-list>ul li h3{
    padding-top: 1.4rem;
    font-size: 1.1rem;
    font-weight: 500;
    color: rgb(51,51,51);
}
.channel-box .channel-detail .channel-list>ul li p{
    font-size: 1rem;
    line-height: 2.3rem;
}
.channel-box .channel-detail .channel-list>ul li p i{
    float: right;
}


.nav-bar{
    width: 100%;
    height: 4.5rem;
    background-color: rgb(249,249,249);
    position: fixed;
    bottom: 0px;
    left: 0;
    z-index: 9999;
}
.nav-bar ul{
    height: 100%;
    display: flex;
}
.nav-bar ul li {
  flex: 1;
  height: 100%;
}
.nav-bar ul li a{
    display: inline-block;
    width: 100%;
    height: 100%;
    text-align: center;
    vertical-align: middle;
}

.nav-bar ul li a i{
    display:block;
    width: 2.1rem;
    height: 2.1rem;
    margin: 0.5rem auto 0.35rem auto;
    background: url("../img/navbar1.png") no-repeat center;
    background-size: auto 100%;
}
.nav-bar ul li a b{
    font-size: 0.9rem;
    font-weight: 500;
}
.nav-bar ul li:nth-child(2) a i{
   background-image: url("../img/navbar2.png");
}
.nav-bar ul li:nth-child(3) a i{
   background-image: url("../img/navbar3.png");
}
.nav-bar ul li:nth-child(4) a i{
   background-image: url("../img/navbar4.png");
}
.nav-bar ul li:nth-child(5) a i{
   background-image: url("../img/navbar5.png");
}